Hoping someone can help. Have a HTC Droid DNA for a couple months and love it. No problems. About a week ago I took two pictures and was forwarding them to my gmail account (firstname.lastname@example.org. I accidentally sent them to email@example.com which is an account that does not exist. I received a notice "could not deliver mail" and two consecutive "droid" sound notifications. No problem I thought, just go into sent mail and delete but they are not there. I guess because they were not actually sent. Now for the past week, EVERY HOUR (that is the time I set for notifications-syncing) i get two consecutive droid sound notices. Extremely annoying. All mail functions for my gmail and aol accounts work fine before this happened and other than the annoying droid reminder every hour work fine after. I was hoping someone could help me solve this in some way. I am not very phone, tech literate so please explain any possible fix carefully. Many thanks in advance for any help.